3260561881000 has 64 divisors (see below), whose sum is σ = 7637369809680. Its totient is φ = 1302916204800.

The previous prime is 3260561880977. The next prime is 3260561881033. The reversal of 3260561881000 is 1881650623.

It can be written as a sum of positive squares in 8 ways, for example, as 761196921156 + 2499364959844 = 872466^2 + 1580938^2 .

It is a super-2 number, since 2×3260561881000² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 638187 + ... + 2632186.

Almost surely, 2^{3260561881000} is an apocalyptic number.

It is an amenable number.

3260561881000 is an abundant number, since it is smaller than the sum of its proper divisors (4376807928680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3260561881000 is a wasteful number, since it uses less digits than its factorization.

3260561881000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271391 (or 3271377 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 3260561881000 in words is "three trillion, two hundred sixty billion, five hundred sixty-one million, eight hundred eighty-one thousand".